After not using Jolla for a long time, I reseted it and updated Kaajanlampi --> Maadajävri --> Tahkalampi. However I had strange problems related to charging and booting. If the phone was on and charging and I powered it off, charging hung up at the logo where the cable is detached. It didn't show the animation where the cable connects and you see the percentage of battery. And, sometimes if I tried to power the phone on, the red light would come on and nothing happened.